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Integrated Hydrological Modeling of the North China Plain and Implications for Sustainable Water Management : Volume 10, Issue 3 (19/03/2013)

By Qin, H.

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Book Id: WPLBN0004011703
Format Type: PDF Article :
File Size: Pages 49
Reproduction Date: 2015

Title: Integrated Hydrological Modeling of the North China Plain and Implications for Sustainable Water Management : Volume 10, Issue 3 (19/03/2013)  
Author: Qin, H.
Volume: Vol. 10, Issue 3
Language: English
Subject: Science, Hydrology, Earth
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Cao, G., He, X., Kristensen, M., Qin, H., Rasmussen, M. O., Refsgaard, J. C.,...Zheng, C. (2013). Integrated Hydrological Modeling of the North China Plain and Implications for Sustainable Water Management : Volume 10, Issue 3 (19/03/2013). Retrieved from

Description: Center for Water Research, College of Engineering, Peking University, Beijing, 100871, China. Groundwater overdraft has caused fast water level decline in the North China Plain (NCP) since the 1980s. Although many hydrological models have been developed for the NCP in the past few decades, most of them deal only with the groundwater component or only at local scales. In the present study, a coupled surface water–groundwater model using the MIKE SHE code has been developed for the entire alluvial plain of the NCP. All the major processes in the land phase of the hydrological cycle are considered in the integrated modeling approach. The most important parameters of the model are first identified by a sensitivity analysis and then calibrated for the period 2000–2005. The calibrated model is validated for the period 2006–2008 against daily observations of groundwater heads. The simulation results compare well with the observations where acceptable values of root mean square error (RMSE) and correlation coefficient (R) are obtained. The simulated evapotranspiration (ET) is then compared with the remote sensing (RS) based ET data to further validate the model simulation. The comparison result with a R2 value of 0.93 between the monthly averaged values of simulated actual evapotranspiration (AET) and RS AET for the entire plain shows a good performance of the model. The water balance results indicate that more than 69% of water leaving the flow system is attributed to the ET component. Sustainable water management analysis of the NCP is conducted using the simulation results obtained from the integrated model. An effective approach to improve water use efficiency in the NCP is by reducing the actual evapotranspiration, and that water-saving technologies based on this approach, such as change of crop rotation types, may be adopted.

Integrated hydrological modeling of the North China Plain and implications for sustainable water management

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